I-495 & I-270 Managed Lanes Study Edit presentation title - - PowerPoint PPT Presentation

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Sep 17, 2022 219 likes •579 views

I-495 & I-270 Managed Lanes Study Edit presentation title MM/DD/YYYY 1 1 MCDOT BRT Public transit to Tysons network I-495 & I-270 Managed Lanes BW Parkway I-270 HOV MARC improvements service and capacity improvements

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I-495 & I-270 Managed Lanes Study

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Congestion relief (MD-5

and MD-210) Access improvements (MD-202)

I-495 HOT lanes

Corridor Cities Transitway

Express bus enhancements

MARC

service and capacity improvements

BW Parkway improvements

Beltway interchange improvements

Park-and-ride facilities

I-495 & I-270 Managed Lanes

Public transit subsidies

I-270 HOV

Public transit to Tysons MCDOT BRT network

Bike/ped crossings

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Alternative Review Process

Technical Review of Alternatives – transportation and NEPA process
Function versus form – should it be studied, not whether

appropriate to implement or degree of impact

NEPA Requirements
Fatal Flaws as identified by staff
Screening down to nine alternatives to advance to the next stage –

Alternatives Retained for Detailed Study (ARDS)

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Fatal Flaws – General Principles

1. Adding general purpose lanes
2. Re-purposing general purpose lanes into HOV lanes or ETL/HOT lanes
3. Re-purposing existing peak period, peak direction (3 hours max) HOV

lanes into 24/7 ETL/HOT lanes (legal concerns) –

23 US Code § 129, Toll roads, bridges, tunnels, and ferries.
“Tolling U.S. Highways”, Report R43575, Congressional Research Service, August 26, 2016.
4. HOV lane(s) plus ETL/HOT managed lane(s) along same corridor
perationally difficult
5. Contrary to transportation best practices

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Alternatives Reviewed

Nineteen Alternatives Total

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Alternatives Reviewed

Nineteen Alternatives Total
Two Alternatives required by NEPA – Alt 1 & Alt 2

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Alternatives Reviewed

Nineteen Alternatives Total
Two Alternatives required by NEPA – Alt 1 & Alt 2
Eleven Alternatives have fatal flaws – Alts. 3, 5, 6, 7, 8, 9, 10 without

modification, 11, 12A, 12B, & 15

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Alternatives Reviewed

Nineteen Alternatives Total
Two Alternatives required by NEPA – Alt 1 & Alt 2
Eleven Alternatives have fatal flaws – Alts. 3, 5, 6, 7, 8, 9, 10 without

modification, 11, 12A, 12B, & 15

Two Alternatives need revision to advance to Alternatives Retained

for Detailed Study (ARDS) – Alt 10 and Alt 14C

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Modification: Convert peak-period HOV lanes to General Purpose lanes

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Modification: Relocate from Off-Alignment onto I-495 and I-270; could optimize use of Managed Lanes network

Bus Transit

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Alternatives Reviewed

Nineteen Alternatives Total
Two Alternatives required by NEPA – Alt 1 & Alt 2
Eleven Alternatives have fatal flaws – Alts. 3, 5, 6, 7, 8, 9, 10 without

modification, 11, 12A, 12B, & 15

Two Alternatives need revision to advance to Alternatives Retained for

Detailed Study (ARDS) – Alt 10 and Alt 14C

Nine Alternatives recommended to advance to the ARDS process

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Modification: Convert peak-period HOV lanes to General Purpose lanes

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Fixed Guideway Transit

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Alt 14A – Fixed Guideway Transit (Heavy Rail/Metro)

Alternative developed by MDOT SHA has NO detail. Staff recommendation for detailed study:

Heavy rail – 3rd track and operational improvements –

Brunswick Line

Metro – extend Red Line to Metropolitan Grove
Metro – extend Red Line to Germantown Transit Center

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Alt 14B – Fixed Guideway Transit (Light Rail)

Alternative developed by MDOT SHA has NO detail. Staff recommendation for detailed study:

Light rail – Extend Purple Line to Tysons
Light rail – Extend Purple Line to Largo Town Center
Light rail – Extend Purple Line to National Harbor
Light rail – Extend Purple Line to Alexandria
Light rail – Shady Grove Metro to Germantown Transit Center

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Modification: Relocate from Off-Alignment onto I-495 and I-270; could optimize use of Managed Lanes network

Bus Transit

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Staff Recommendation – Alternatives to Advance to ARDS

1. Alt 1 – No Build
2. Alt 2 – TSM/TDM
3. Alt 4 – 1-Lane Managed (HOV) Network
4. Alt 10 modified – 2-Lane Managed (ETL/HOT) Network
Current HOV lanes converted to GP lanes
5. Alt 13A – Reversible Managed Lanes on I-495
6. Alt 13B – Reversible Managed Lanes on I-270
7. Alt 14A – Fixed Guideway Transit (Heavy Rail/Metro)
8. Alt 14B – Fixed Guideway Transit (Light Rail)
9. Alt 14C modified – Express Bus/BRT Network

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Next Steps

A. Inter-Agency Working Group (IAWG) Process

Monthly meetings among Lead, Sponsoring, Cooperating and Participating Agencies to collaboratively identify and resolve issues that could delay the environmental review process or affect approvals required for the project under NEPA.

B. Immediate Project Milestones

1. 1/23/19 – Through IAWG process, MDOT SHA seeking agency concurrence with comment on the selection of ARDS prior to public release late-January/early-February 2. Spring 2019: Mandatory Referral prior to selection of Preferred Alignment will serve as M-NCPPC concurrence/concurrence with comment to MDOT SHA selection of Preferred Alignment